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U.S. Department of Energy
Office of Scientific and Technical Information

Production test IP-362-A, irradiation of heavy walled tubular elements with thick outer jackets

Technical Report ·
DOI:https://doi.org/10.2172/10175897· OSTI ID:10175897
The objective of the production test detailed in this report is to evaluate the effect of a 36 mil Zircaloy-2 outer jacket on the behavior of heavy walled tubular elements during high temperature irradiation. Zircaloy-2 jacketed unalloyed natural uranium fuel elements nominally 1.43 inch OD, 0.52 inch ID, with 36 mil jackets on the outer surfaces will be irradiated in the KER Loops to an exposure not greater than 3500 WD/T. Several of the fuel element failures that have occurred during testing in the KER Loops have apparently resulted from localized jacket thinning on the external surfaces of high exposure elements. One of the methods proposed to prevent this failure mechanism was to increase the Zircaloy-2 jacket thickness on the fuel element outer surface. The fuel elements authorized by this production test have been prepared with nominally 36 mil external jackets. The behavior of these elements will be compared to the behavior of similar elements with 20 mil jackets currently being irradiated in KER-3.
Research Organization:
General Electric Co., Richland, WA (United States). Hanford Atomic Products Operation
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC06-76RL01830
OSTI ID:
10175897
Report Number(s):
HW--67277; ON: DE94017264
Country of Publication:
United States
Language:
English